• 제목/요약/키워드: Pharmaceutical analysis

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Relation Between News Topics and Variations in Pharmaceutical Indices During COVID-19 Using a Generalized Dirichlet-Multinomial Regression (g-DMR) Model

  • Kim, Jang Hyun;Park, Min Hyung;Kim, Yerin;Nan, Dongyan;Travieso, Fernando
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제15권5호
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    • pp.1630-1648
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    • 2021
  • Owing to the unprecedented COVID-19 pandemic, the pharmaceutical industry has attracted considerable attention, spurred by the widespread expectation of vaccine development. In this study, we collect relevant topics from news articles related to COVID-19 and explore their links with two South Korean pharmaceutical indices, the Drug and Medicine index of the Korea Composite Stock Price Index (KOSPI) and the Korean Securities Dealers Automated Quotations (KOSDAQ) Pharmaceutical index. We use generalized Dirichlet-multinomial regression (g-DMR) to reveal the dynamic topic distributions over metadata of index values. The results of our analysis, obtained using g-DMR, reveal that a greater focus on specific news topics has a significant relationship with fluctuations in the indices. We also provide practical and theoretical implications based on this analysis.

Analysis of the Corporate Life Cycle using the Gompertz Model Focused on Korean Pharmaceutical Longevity Companies

  • Kyu-Jin, CHOI;Kang-Sun, LEE;Sung-Wook, KANG;Dae-Myeong, CHO
    • 융합경영연구
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    • 제11권1호
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    • pp.31-44
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    • 2023
  • Purpose: This study aims to figure out the characteristics of corporate life cycle and resource input in terms of the sustainability diagnosis of pharmaceutical companies in Korea. Research design, data, and methodology: Using the Gompertz model under the assumption that companies have finite resources, this study tries quantitative interpretation of life cycle and resource input pattern for longevity companies with 25 years of experience among 158 pharmaceutical companies listed on Korean stock market based on maturity of revenue. Results: The study found revenue maturity through Gompertz model was statistically correlated with enterprise value. According to the life cycle analysis, more than 95% of 59 pharmaceutical companies were in the growth and maturity phase and have an average life cycle of 88 years and an average remaining life of 52 years. Regarding maturity profile of resource input, maturity of employees was generally high more than 60% and this meant there was jobless growth in Korean pharmaceutical industry. Conclusion: This study demonstrated there is a high statistical correlation between the maturity of a company's resource input and its revenue and enterprise value. It is believed that these results could be utilized as a basis for high fidelity function that predict revenue and enterprise value based on resource input information.

제약업계의 학사수준 신입인력 전공 선호도 연구 (Analysis of the Pharmaceutical Companies' Recruitment Preference for Bachelor's Degree Holders without Prior Experience)

  • 한아람;천인경;길미현;양유경;배승진
    • 약학회지
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    • 제58권6호
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    • pp.397-404
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    • 2014
  • The Ministry of Health and Welfare proposed the "undergraduate program specializing in pharmaceutical industry" in 2013, as part of its roadmap to assist domestic pharmaceutical companies to become the top-tier pharma companies in near future and provide skilled personnel tailored for pharmaceutical industry. However, it is not clear whether this "undergraduate program" meets the needs of pharmaceutical industry, especially when the number of pharmacy students increased from 1,200 to 1,700 per year since 2009. The purpose of this paper is to identify which educational background is preferred by pharmaceutical companies, by surveying the CEOs of domestic pharmaceutical companies and referring to recruitment advertisements shown in medical newspapers, specified by the fields within the companies. Two independent reviewers referred to recruitment session in Yakup newspaper and Dailypharm from May 2012 until January 2014, focusing on recruitments from pharmaceutical companies targeting bachelors' degree holders with no prior experience. 749 recruitments were observed during the study period, more than 90% of which were provided by domestic pharmaceutical companies, and regardless of the companies being domestic or multinational, pharmaceutical companies' preference for pharmacists was remarkable (44.3% for domestic and 65.8% for multinational), and the preference was especially high in the fields such as Medical, R&D, Market Access (regulatory affair/pricing and reimbursement), Business Development, and Marketing. Survey results showed that the need of establishing the undergraduate program specializing in pharmaceutical industry is mixed, suggesting that although there is need for the educating personnel targeting pharmaceutical industry, the undergraduate program would not be an answer due to current PEET system. Our study concludes that in the example of pharmaceutical companies' recruitments shown in medical newspapers, pharmaceutical companies prefer pharmacy major in almost all fields of the pharmaceutical companies, yet the pharmaceutical companies still perceive the gap between current bachelor's degree holders(including pharmacy majors) and the ideal personnel required for advancing to the "top-class" pharmaceutical companies.

Identification and Functional Characterization of an afsR Homolog Regulatory Gene from Streptomyces venezuelae ATCC 15439

  • Maharjan, Sushila;Oh, Tae-Jin;Lee, Hei-Chan;Sohng, Jae-Kyung
    • Journal of Microbiology and Biotechnology
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    • 제19권2호
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    • pp.121-127
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    • 2009
  • Sequencing analysis of a 5-kb DNA fragment from Streptomyces venezuelae ATCC 15439 revealed the presence of one 3.1-kb open reading frame(ORF), designated as afsR-sv. The deduced product of afsR-sv(1,056 aa) was found to have high homology with the global regulatory protein AfsR. Homology-based analysis showed that aftR-sv represents a transcriptional activator belonging to the Streptomyces antibiotic regulatory protein(SARP) family that includes an N-terminal SARP domain containing a bacterial transcriptional activation domain(BTAD), an NB-ARC domain, and a C-terminal tetratricopeptide repeat domain. Gene expression analysis by reverse transcriptase PCR(RT-PCR) demonstrated the activation of transcription of genes belonging to pikromycin production, when aftR-sv was overexpressed in S. venezuelae. Heterologous expression of the aftR-sv in different Streptomyces strains resulted in increased production of the respective antibiotics, suggesting that afsR-sv is a positive regulator of antibiotics biosynthesis.

In-silico and In-vitro based studies of Streptomyces peucetius CYP107N3 for oleic acid epoxidation

  • Bhattarai, Saurabh;Niraula, Narayan Prasad;Sohng, Jae Kyung;Oh, Tae-Jin
    • BMB Reports
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    • 제45권12호
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    • pp.736-741
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    • 2012
  • Certain members of the cytochromes P450 superfamily metabolize polyunsaturated long-chain fatty acids to several classes of oxygenated metabolites. An approach based on in silico analysis predicted that Streptomyces peucetius CYP107N3 might be a fatty acid-metabolizing enzyme, showing high homology with epoxidase enzymes. Homology modeling and docking studies of CYP107N3 showed that oleic acid can fit directly into the active site pocket of the double bond of oleic acid within optimum distance of $4.6{\AA}$ from the Fe. In order to confirm the epoxidation activity proposed by in silico analysis, a gene coding CYP107N3 was expressed in Escherichia coli. The purified CYP107N3 was shown to catalyze $C_9-C_{10}$ epoxidation of oleic acid in vitro to 9,10-epoxy stearic acid confirmed by ESI-MS, HPLC-MS and GC-MS spectral analysis.

전문의약품 마케팅활동의 효과 측정에 관한 실증 연구 (An Empirical Study on the Effectiveness of Marketing Activities for Ethical Drugs (ETC))

  • 노승연;김건우;장남식
    • 아태비즈니스연구
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    • 제14권4호
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    • pp.289-303
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    • 2023
  • Purpose - The purpose of this study is to investigate the types and forms of various marketing activities actually used in pharmaceutical companies and to empirically analyze the impact of these marketing activities on sales. Design/methodology/approach - This study categorize five years' worth of marketing activity data from a foreign pharmaceutical company 'A' which operates in South Korea into five categories. Multiple regression analysis and interaction effects are employed for data analysis. Findings - First, CRM calls, Detail calls, GP, and Web events have a positive impact on sales, but SoV does not show significant differences. Second, in the comparison between HQ1 and HQ2 based on patent ownership, Detail calls and Web events had a stronger impact on sales in HQ2, where the patent period is still in effect, compared to HQ1. However, SoV showed no difference between HQ1 and HQ2. Research implications or Originality - First, Detail Calls are more effective for drugs with active patents, while CRM Calls work better for drugs with expired patents. This emphasizes the need to customize call strategies based on patent status. Second, the significant impact of Web Events on sales in HQ2 compared to HQ1 suggests that online information access is crucial, indicating that customer receptivity varies based on product nature. Third, these insights, derived from data analysis, call for a shift in pharmaceutical marketing analysis methods away from traditional approaches. Finally, this study holds significance as one of the first empirical analyses using actual marketing data from pharmaceutical companies in South Korea.

혁신형제약기업의 기술혁신활동에 대한 경영효율성 분석 (Management Efficiency Analysis of Innovative Pharmaceutical Companies' Technological Innovation Activities)

  • 임혜련;민현구
    • 한국콘텐츠학회논문지
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    • 제21권11호
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    • pp.361-374
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    • 2021
  • 본 연구의 목적은 혁신형제약기업 인증 기업을 대상으로, 기술혁신활동에 대한 효율성과 생산성을 분석하여 경쟁력을 진단하고 강화 방안을 도출하는 것이다. 이를 위해 38개 혁신형제약기업에 대한 2017~2019년 동안의 투입(연구개발비, 종업원 수) 및 산출(매출, 영업이익, 특허) 데이터를 수집하여, DEA, Tobit 및 MPI를 실시하였다. 그 결과 첫째, 혁신형제약기업의 DEA 결과는 규모의 효율성을 보여주는 CCR 모형 값과 내부 운영 효율성을 나타내는 BCC 모형 값 간에 차이가 있었다. 둘째, 효율성은 기업의 특성에 따라 다르지 않았다. 셋째, Tobit 모형은 보유특허수가 효율성에 긍정적인 영향을 미치는 것으로 나타났다. 넷째, 전체 MPI는 0.89로, 이는 TECI가 3%p 감소하고 TCI가 4%p 증가한 것으로 해석할 수 있다. 본 연구의 결과는 비효율의 원인을 규명하고 목표값을 제시하여 효율성 향상을 위한 대응전략을 위한 의사결정 자료로 활용할 수 있다.

고성능 액체크로마토그래프 기기의 성능검증을 위한 밸리데이션 가이드라인에 대한 연구 (Investigation of Validation Guidelines for Performance Verification of High Performance Liquid Chromatograph)

  • 윤원남;이범규;이원재
    • 약학회지
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    • 제57권5호
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    • pp.362-368
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    • 2013
  • High performance liquid chromatograph (HPLC) is the most frequently used analytical instrument in analytical laboratories for pharmaceutical analysis. In order to provide a high level of assurance for reliable data generated from the HPLC analysis, the performance qualification of the HPLC system is required. For this purpose, the performance of HPLC system should be regularly monitored by examining the key functions of the typical HPLC system (solvent delivery system, injector system, column oven, UV-VIS detector system). We have investigated the validation guidelines of the performance verification of these key modules for HPLC system. And we proposed and evaluated its validation guidelines and the related verification methods for pharmaceutical analysis that could be practically applied in Korea.

모세관 전기영동법을 이용한 제제중의 수용성 비타민 분석 (Analysis of Water-soluble Vitamins in Pharmaceutical Products by Capillary Electrophoresis)

  • 이종진;문동철;이공주
    • 약학회지
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    • 제38권1호
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    • pp.38-45
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    • 1994
  • An analytical method using capillary electrophoresis (CE) was developed for quantitation of water soluble vitamin contents in various vitamin products. The method includes the optimization of separation of 11 water soluble vitamins changing the micellar concentration and pH of running buffer, applied voltage and sample preparation. Best resolution was obtained with 25 mM phosphate buffer (pH=8.0) containing 50 mM sodium dodecyl sulphate (SDS) as micellar phase. At optimum condition, water soluble vitamins were determined in orange juice and vitamin products such as vitamin C pulvis, vitamin injection, coated multivitamin tablet. The quantitative analysis of water soluble vitamins with CE was suitable for quality control of pharmaceutical products with sound reproducibility.

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근적외선 분광분석법을 이용한 타우린의 정량 분석 (Quantitative Analysis of Taurine Using Near Infrared Spectrometry (NIRS))

  • 조창희;김효진;맹대영;서상훈;조정환
    • 약학회지
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    • 제42권6호
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    • pp.545-551
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    • 1998
  • Near Infrared transmittance Spectroscopy (NIRS) was used to evaluate and quantify the pharmaceutical active compounds. In the paper, taurine (2-Aminoethanesulfonic acid) was quantitatively analyzed in commercial pharmaceutical preparations. For calibration a central composite factorial design was used to determine concentrations of ingredients in reference samples. For the quantitative analysis of taurine, the most suitable data analysis method includes the calculation of second derivatives and a partial least squares regression (PLSR) model. By NIR spectrometry, combined with PLSR, the taurine concentration was successfully predicted with a relative standard error of prediction (SEP) lower than 1.04%.

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